RGB Color Uniformity

I would like to learn more about achieving color uniformity in lighting products that utilize RGB LEDs under wavelength limitations. Specifically, I am interested in understanding whether using color coordinates instead of wavelengths can help ensure consistent colors, particularly for shades like pink and purple, which are challenging to measure with the integrating sphere method. Additionally, I am curious about the feasibility of implementing the MacAdam ellipse (SDCM) method to set color limits and whether there are alternative approaches beyond relying solely on wavelengths to achieve color consistency.

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